Initial public version

components/nvs_flash/src/nvs_platform.hpp

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+// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+#ifndef nvs_platform_h
+#define nvs_platform_h
+
+
+#ifdef ESP_PLATFORM
+#define NVS_DEBUGV(...) ets_printf(__VA_ARGS__)
+
+#include "rom/ets_sys.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+
+namespace nvs
+{
+
+class Lock
+{
+public:
+    Lock()
+    {
+        assert(mSemaphore);
+        xSemaphoreTake(mSemaphore, portMAX_DELAY);
+    }
+
+    ~Lock()
+    {
+        assert(mSemaphore);
+        xSemaphoreGive(mSemaphore);
+    }
+
+    static esp_err_t init()
+    {
+        assert(mSemaphore == nullptr);
+        mSemaphore = xSemaphoreCreateMutex();
+        if (!mSemaphore) {
+            return ESP_ERR_NO_MEM;
+        }
+        return ESP_OK;
+    }
+
+    static void uninit()
+    {
+        vSemaphoreDelete(mSemaphore);
+        mSemaphore = nullptr;
+    }
+
+    static SemaphoreHandle_t mSemaphore;
+};
+} // namespace nvs
+
+#else // ESP_PLATFORM
+#define NVS_DEBUGV(...) printf(__VA_ARGS__)
+namespace nvs
+{
+class Lock
+{
+public:
+    Lock() { }
+    ~Lock() { }
+    static void init() {}
+    static void uninit() {}
+};
+} // namespace nvs
+#endif // ESP_PLATFORM
+
+#ifndef CONFIG_NVS_DEBUG
+#undef NVS_DEBUGV
+#define NVS_DEBUGV(...)
+#endif
+
+
+#endif /* nvs_platform_h */